International Journal of Respiration, Volume 34, Issue 12,2014, Pages 883-888, doi:10.3760/cma.j.issn.1673-436X.2014.12.002
International Journal of Respiration, Volume 34, Issue 12,2014, Pages 946-947, doi:10.3760/cma.j.issn.1673-436X.2014.12.015
International Journal of Respiration, Volume 34, Issue 12,2014, Pages 942-945, doi:10.3760/cma.j.issn.1673-436X.2014.12.014
International Journal of Respiration, Volume 34, Issue 12,2014, Pages 926-930, doi:10.3760/cma.j.issn.1673-436X.2014.12.010
International Journal of Respiration, Volume 34, Issue 12,2014, Pages 910-916, doi:10.3760/cma.j.issn.1673-436x.2014.12.007